Microbiological testing syringe



FIG. 1 is a top plan view of a microbiological testing syringe showingour new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top and left-front perspective view thereof with the plungerin an extended position.

The ornamental design for a microbiological testing syringe,substantially as shown.